Using Visual Basic .NET, you can use Start method of the System.Diagnostics.Process class to launch an external program. Additionally, you can use the new Try/Catch syntax to check for errors. The following code sample, from our Total .NET SourceBook product, shows how to do this.
Public Sub LaunchURLWithChecks()
' Launch the currently installed web browser, sent
' it to a specified page, and check the status.
Dim MyURL As String = "http://www.fmsinc.com"
' Use the Try keyword to set up exception (i.e. error) handling
' To do this, we use start a new process and pass it the URL.
' If an execption occurs, the Catch block will run
Catch noBrowser As System.ComponentModel.Win32Exception _
When noBrowser.ErrorCode = -2147467259
Catch other As System.ComponentModel.Win32Exception
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